Finding the Third Proportional to 31,914 and 67,862.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,914 : 67,862.81 = 67,862.81 : x
2. Step 2: Convert to fraction form
   31,914/67,862.81 = 67,862.81/x
3. Step 3: Cross multiply
   31,914x = 67,862.81 × 67,862.81
4. Step 4: Simplify right side
   31,914x = 4,605,361,320.41
5. Step 5: Solve for x
   x = 4,605,361,320.41/31,914
6. Step 6: Final answer
   x = 144,305.36